The main watch strap types are leather (classic and comfortable), metal bracelets (durable and dressy), mesh (light and adjustable), silicone or rubber (sporty and waterproof) and NATO or fabric straps (casual and easy to swap). To change a strap, measure the lug width — the gap between the lugs where the strap attaches — in millimetres and buy a strap of the same width.
Which strap material suits you?
- Leather: classic, comfortable and formal-friendly; keep it dry.
- Metal bracelet: durable, dressy and water-friendly; adjust by removing links.
- Mesh (milanese): light, breathable and infinitely adjustable with a sliding clasp.
- Silicone or rubber: waterproof, sweat-proof and easy to clean; ideal for sport.
- NATO and nylon: a single fabric strap that threads under the case; casual and colourful.
- Fabric and canvas: light and relaxed; suits field watches.
How do you measure lug width?
Remove the strap or measure the gap between the inner edges of the lugs with a ruler. Common widths are 16, 18, 20 and 22 mm for adults, with smaller sizes for petite watches. A strap of the wrong width either will not fit or will leave gaps that look and feel loose.
Matching straps to occasions
- Formal and weddings: black or dark brown leather, or a polished metal bracelet.
- Office: leather, metal or mesh.
- Gym and swimming: silicone or rubber on a water-resistant watch.
- Weekend and travel: NATO, canvas or mesh.
- Summer heat: mesh, silicone or fabric, which handle sweat better than leather.
How to change a watch strap at home
Many modern straps have quick-release pins that need no tools.
- Turn the watch over on a soft cloth.
- Use a spring-bar tool or a fine pointed tool to compress the spring bar at the lug.
- Ease the old strap out and fit the spring bar into the new strap.
- Compress the bar again and slide it into the lug holes until it clicks.
- Tug gently to check both ends are secure.
Caring for each strap type
Wipe leather dry and condition it occasionally; rinse silicone and dry it; wash NATO straps by hand; clean metal bracelets with a soft brush and mild soapy water. Rotating between two straps lets each dry and rest, which helps both last longer.
Frequently asked questions
What strap is best for everyday wear?
A metal bracelet or mesh strap handles daily wear and water best; leather is more comfortable but needs to be kept dry.
Can I put any strap on my watch?
Any strap of the same lug width will fit, as long as the attachment type matches.
Why does my leather strap smell?
Sweat soaks into leather. Let it dry fully between wears and switch to silicone or mesh for exercise.
What is a NATO strap?
A single fabric strap that threads under the watch case, so the watch stays on even if one spring bar fails.